Climatological Report (Annual)
Issued by NWS St Louis, MO

000
CXUS53 KLSX 062027 CCB
CLASTL

CLIMATE REPORT
...UPDATED...
NATIONAL WEATHER SERVICE ST LOUIS MO
1024 PM CST TUE JAN 3 2012

...................................

...THE ST. LOUIS CLIMATE SUMMARY FOR THE YEAR OF 2011...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1874 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             115   07/14/1954
 LOW              -22   01/05/1884
HIGHEST           104   09/01
LOWEST              0   01/21
AVG. MAXIMUM     67.8              66.2     1.6
AVG. MINIMUM     49.5              47.9     1.6
MEAN             58.7              57.1     1.6
DAYS MAX >= 90     68
DAYS MAX <= 32     20
DAYS MIN <= 32     81
DAYS MIN <= 0       1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        57.96   2008
 MINIMUM        20.69   1953
TOTALS          47.17             40.96    6.21
DAYS >= .01       126
DAYS >= .10        76
DAYS >= .50        34
DAYS >= 1.00       14
GREATEST
 24 HR. TOTAL    4.45   06/25 TO 06/26

SNOWFALL (INCHES)
RECORDS
 TOTAL           63.3   1912
 24 HR TOTAL     20.0   03/30/1890 TO 03/31/1890
TOTALS           30.7              17.7    13.0
SINCE 7/1         2.0               5.1    -3.1
DAYS >= TRACE      40
DAYS >= 1.0        10
GREATEST
 SNOW DEPTH         9   01/20
 24 HR TOTAL      9.6   01/19 TO 01/20

DEGREE_DAYS
HEATING TOTAL    4187              4535    -348
 SINCE 7/1       1397              1765    -368
COOLING TOTAL    2014              1646     368
.................................................

WIND (MPH)
AVERAGE WIND SPEED                  MM
HIGHEST WIND SPEED/DIRECTION    52/280    DATE  02/27
HIGHEST GUST SPEED/DIRECTION    68/200    DATE  09/03


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             55     HAIL                       7
FOG W/VIS <= 1/4 MILE    11

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.


***2011 CLIMATE NOTES***

ANNUAL...

TIED 4TH WARMEST (58.7 DEGREES) ANNUAL AVERAGE TEMPERATURE
ON RECORD (1874-PRESENT)

14TH SNOWIEST YEAR 30.7 INCHES (1885-PRESENT)

14TH WETTEST YEAR 47.17 INCHES (1874-PRESENT)


SEASONAL...

4TH WARMEST SUMMER (JUNE-AUGUST) 81.9 DEGREES


MONTHLY...

6TH SNOWIEST JANUARY 14.7 INCHES

7TH WETTEST APRIL 7.88 INCHES

6TH WETTEST JUNE 9.10 INCHES

4TH WARMEST JULY 85.7 DEGREES


DAILY...

13 TOTAL RECORD HIGH MAXIMUM TEMPERATURES
* RECORD HIGH MAXIMUM OF 104 DEGREES SEP. 1 TIED THE WARMEST
TEMPERATURE EVER RECORDED IN THE MONTH OF SEPTEMBER

19 TOTAL RECORD HIGH MINIMUM TEMPERATURES
* 85 DEGREES MINIMUM JULY 11 WAS SECOND HIGHEST MINIMUM EVER
* 84 DEGREES MINIMUM JULY 22 WAS FIFTH HIGHEST MINIMUM EVER

1 DAILY SNOWFALL RECORD (5.7 INCHES JAN. 20)

1 DAILY PRECIPITATION RECORD (1.21 INCHES MARCH 14)

OBSERVED TORNADO APRIL 22

$$